大约有 41,000 项符合查询结果(耗时:0.0362秒) [XML]

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Why does GCC generate 15-20% faster code if I optimize for size instead of speed?

I first noticed in 2009 that GCC (at least on my projects and on my machines) have the tendency to generate noticeably faster code if I optimize for size ( -Os ) instead of speed ( -O2 or -O3 ), and I have been wondering ever since why. ...
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Determine a string's encoding in C#

Is there any way to determine a string's encoding in C#? 9 Answers 9 ...
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How can I disable a button in a jQuery dialog from a function?

I have a jQuery dialog that requires the user to enter certain information. In this form, I have a "continue" button. I would like this "continue" button to only be enabled once all the fields have content in them, else it will remain disabled. ...
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Convert json data to a html table [closed]

Is there any jQuery or javascript library that generates a dynamic table given json data? I don't want to define the columns, the library should read the keys in the json hash and generate columns. ...
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“No backupset selected to be restored” SQL Server 2012

I have a SQL Server 2012 database with filestream enabled. However, when I backup it and try to restore it on another SQL Server 2012 instance (on another machine), I simply get this message that: ...
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How do I check if an element is really visible with JavaScript? [duplicate]

In JavaScript, how would you check if an element is actually visible? 16 Answers 16 ...
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Using a custom typeface in Android

I want to use a custom font for my android application which I am creating. I can individually change the typeface of each object from Code, but I have hundreds of them. ...
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Simplest way to detect a mobile device in PHP

What is the simplest way to tell if a user is using a mobile device to browse my site using PHP? 15 Answers ...
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Extract digits from a string in Java

I have a Java String object. I need to extract only digits from it. I'll give an example: 14 Answers ...
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Convert audio files to mp3 using ffmpeg

I need to convert audio files to mp3 using ffmpeg. 11 Answers 11 ...